<!DOCTYPE html>
<html>
   <head>
      <meta charset="utf-8" />
      <title>jQuery in Action, 3rd edition</title>
   </head>
   <body>
      <p>I'm a paragraph</p>
      <script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
      <script>
         window.jQuery || document.write('<script src="../js/jquery-1.11.3.min.js"><\/script>');
         var $allElements = $('*');
      </script>
   </body>
</html>